Coach > Lessons - Seeing a '0 B' value for 'File size to download' after making a lesson visible

[pcenov]

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Observed behavior

After having just added several new resources to a lesson when I click the 'Visible to learners' toggle, then I am seeing a '0 B' value for 'File size to download'. I'm seeing the correct size if I manually refresh the page. The value is also updated correctly if I am removing resources but if I add additional resources then it's not so this can be very confusing.

file-size-download.mp4

Expected behavior

The 'File size to download' value should be updated correctly after addition of resources.

Steps to reproduce the issue

1. Install the build from https://github.com/learningequality/kolibri/releases/tag/v0.19.0-beta2
2. Go to Coach > Lessons and start adding resources to a lesson.
3. Toggle the 'Visible to learners' switch.

Usage Details

Kolibri 0.19.0b2
Windows 11, Ubuntu 22, Mac OS 15.5 - Chrome, Firefox

[pcenov]

@radinamatic